Holder for sine-bars and similar implements.



F MULLER HOLDER FOR SINE BARS AND-'SIMI/LAR IMPLEMENTS.

APPLICATION FILED AUG.4. 1916- Patented Feb. 2 7, 1917.

F. MULLER HOLDER FOR SINE BARS AND SIMILAR IMPLEMENTS.

APPLICATION FILED AUG-4, I916- 1,217',487.-

Patented Feb. 2711917.

2 snsns-snter 2;

' rods is adapted to travel,

FREDE C MULLER,

or ELIZABETH, new Jnnsnr.

HOLDER, FOR SINE-BARS AND SIMILAR, IMILEMENTS.

Specification of Letters Patent.

PatentedFeb. 27,1917.

Application filed August4, 1916. Serial 110,113,188.

To all whom it may concern:

Be it known that I, Frannnnrox MULLER, a citizen of the United States,and a resident of Elizabeth, in Union county and State of New Jersey,useful Improvements in Holders for Bars and Similar Implements,following is a specification.

This invention relates to a holder of novel construction by means ofwhich sine bars, indicator bars, scriber bars and similar delicateimplements may be adjusted with great accuracy. The holder is soconstituted that the sine bar or other implement carried thereby mayfirst be moved into close proximity to the work piece and may then betilted to conform to the dip thereof, the several operations beingperformed in the most accurate manner. The invention consists in thevarious features of construction more fully pointed out in thespecification and appended claims.

In the accompanying drawing:-

Figure 1 is a rear elevation of a embodying my used as a support for asine bar;

Fig. 2, a side view; a

Fig. 3, a section on line 3-3, Fig. 1;

Fig. 4, a section on line 4-4 Fig. 1;

Fig. 5, a plan partly in section of the base and square;

Fig. 6 a section on line 6-6 Fig. 2;

Fig. 7 a section on line 77 Fig. 1;

Fig. 8 a vertical section through the slide adjusting means;

Fig. 9, a section on line 97 9, Fig. 1, and

Fig. 10 a diagram showing the sine bar lowered against a base plate.

To a suitable base 1 are secured by means of bushings2 orjotherwise, apair of up} right parallel guide rods 3. Along these vertically, a slide4 cooperating with a clamp 5, said parts being grooved at theircontiguous inner faces to grasp rods 3 (Fig. 3). Means are pro-Slnevided to accurately set the slide vertically,

and also to clamp the same to therodsafter being set. These means are asfollows:

Into slide 4 is tapped a screw 6 having a tubular barrel 7 passingloosely through clamp 5 and The rear threaded end jam nut 9 that engagesthe rear of barrel 7 carries a face of clamp 5. By slacking the nut,spring 8 will have invented certain new and of which thevholderinvention and showing itthe slide.

encompassed by a spring 8.

cause thehold of the slide 4-and'clamp 5 on rods 3 to be relaxed,so-that the slide may be moved up or down along the rods. WVhenthejnutis tightened up, it will crowd the parts 4, 5 against the rods,so that the slide will become clamped to the latter. Through barrel 7passes axially, a pin 10 the rear threaded end of which projects beyondthe barreland carries a jam nut 11, adapted to engage the end of thebarrel. The inner or forward end of pin 10 carries a split tubular jaw12 that engages a vertical bar 13 centered between rods3. This bar isvertically movable, its lower end being stepped loosely into a bushing14 of base 1. The upper threaded end of bar 13 is engaged by thethreaded bushing 15 of-a tubular set screw '16, that bears upon a crosspiece 17 mounted upon the upper ends of rods 3. j

In order to vertically adjust slide 4, nut 9 is slackened,'and nut-11 istightened up so as to clamp pin 10 (and consequently slide 4) to-rod13.;-By now manipulating set screw 16 rod 13 will be raised or loweredaxially to correspondingly raise or lower After the adjustment desiredhas been attained, the slide is locked in position by tightening nut 9.

Slide 4 is provided with a horizontal bore within which is accommodated,an axially rotatable horizontal tubular'sleeve 18, which is of a lengthto protrude from both ends of the slide. This sleeve contains, arotatably and axially movable spindle 19, whichcarries the implement tobe set by means of' the holder. With the embodiment shown, the forwardend of .the spindle is furnished with a'socketed member or toolheadQOhaving a'transverse aperture that receives an axially slidablesine bar 21 having-bulged ends 22. This bar is adapted to beheld-frictionally in position by means of-a plunger 23, housed withinsocketedmember 20, and projected against the bar by. means of a spring24. A rough adjustment of the spindle19, may be effectedbymanuallyturning the same within sleeve 18,1whereb'y thedip of the sinebar 21 may be made to approximate the inclination of the work piece,while a previous axial movement of the spindle within the sleeve, willhave caused the sine bar to. have been projected over the work piece.After this rough adjustment has been spindle 19 may be locked to themeans of a. clamp screw e11- gaging a threaded stud 26 projectingthrough the sleeve and having a split tubular jaw 27 that engages thespindle.

Upon the rearwardly protruding end of sleeve 18, is mounted a worm wheel28 engaged by a worm 29 mounted in a bearing 30 of slide at. By turningthis worm, a corresponding axial rotation will be imparted to sleeve 18,so that the latter may be delicately adjusted and impart a correspondingdelicate adjustment to the spindle and consequently to the sine bar.After the sleeve has thus been set, it may be locked againstdisplacement by means of a spring influenced clamp screw 31 engaging athreaded stud 32 which extends upwardly from a clamp jaw 33. This jaw isreceived within a transverse slot of slide 41, and is apertured as at34, so as to encompass sleeve 18. When screw 31 is tightened, it will bybearing upon a washer 35, supported on slide a, draw jaw 33 slightlyupward so that sleeve 18 becomes tightened within the bore of the slide.

In order to set the work piece, to the sine bar-or other implement, base1, is provided with two intersecting horizontal bores, extendingtherethrough at right angles. Either one of these bores is adapted toreceive the spindle 36 of a gage or flat stock 37 which may be locked inposition by means of a clamp screw 38 (Fig. 9) adapted to bear upon awasher 39, mounted on base 1. Screw 38 engages threaded stud 40 of asplit tubular jaw 11 that grasps spindle 36, at the intersection 01- thebores. By providing the base with the two bores as described, eitherside ol a work piece may be properly gaged.

The operation of the holder will be apparent from the foregoingdescription. After the work piece has been set up alongside of theholder, slide 1 is moved by set screw 16 to such an elevation as tobring the implement 21 to a plane somewhat above the work piece. Spindle19 is pushed out to carry the'implement above the work piece, and ismanually turned so that the implement assumes approximately the dip. orangle desired, the fine adjustment being attained after the spindle hasbeen locked to sleeve 18 by manipulating worm 29.

In case of a sine bar, the slide is then lowered, carrying the sine barinto the position shown in Fig. 10, and against a base or bench 12. Thedistance of the nearest point of upper ball 22 to said bench ismeasured, that distance is divided by the given distance between thecenters of balls 22, and the quantity thus obtained will be the sine ofthe angle. By referrin to the sine table, the angle itself may now' befound accurate to a minute. i

eli'ected, sleeve by 7 comprising a base,

I claim:

1. A holder of the character described, comprising a base, a pair ofrods extending upwardly therefrom, a slide movable along the rods, aclamp carried by the slide and adapted to lock the same to said rods, abar intermediate the rods, means for moving said bar vertically, meansfor locking the slide to said bar, and an implement holding membercarried by the slide.

2. A holder of the character described, comprising a base, apair of rodsextending upwardly therefrom, a slide and a coacting clamp engaging therods, a vertically movable bar having an upper threaded end, means forlocking the slide to said bar, a set screw engaging the bar, a crosspiece carried by the rods and engaged by the set screw, and an implementholding member carried by the slide.

3. A holder of the character described, comprising a base, a pair ofrods extending upwardly therefrom,- a slide and a coacting clampengaging the rods, a threaded tubular barrel carried by the slide, a nutthreaded on said barrel and adapted to engage the clamp, a threadedspindle within the barrel, a nut threaded on said spindle and adapted toengage the barrel, a jaw carried by the spindle, a bar engaged by thejaw, means for moving said bar vertically, and an implledment holdingmember carried by the s 1 e.

4. A holder of the character described, comprising a base, a pair ofrods extending upwardly therefrom, a slide and a coacting clamp engagingthe rods, a threaded tubular barrel carried by the slide, a nut threadedon said barrel and adapted to engage the clamp, a threaded spindlewithin the barrel, a nut threaded on said spindle and adapted to engagethe barrel, a jaw carried by the spindle, a vertically movable barhaving an upper threaded end and engaged by the jaw, a set screwengaging the bar, across piece carried by the rods and engaged by theset screw, and an implement holding member carried by the slide.

5. A holder of the character described, comprising a base, a memberprojecting upwardly therefrom, a slide engaging said member, a tubularsleeve rotatably mounted within the slide, a worm wheel on the sleeve, aworm carried by the slide and engaging the worm wheel, arrotatable andaxially movable spindle within the sleeve, and means for locking saidspindle to said sleeve.

6. A holder of the character described,

a member, projecting upwardly therefrom, a slide engaging said member, atubular sleeve rotatably mounted within the slide, a worm wheel on thesleeve, a worm carried by the slide and engaging the worm wheel, anapertured clamp jaw mounted in the slide and engaging the means forlocking the slide to said bar, means for imparting an axial movement tothe bar, a sleeve rotatable within the slide, a worm Wheel carried bythe sleeve, acoacting worm carried by the slide, a rotatable spindlewithin the sleeve, and means for locking the spindle to said sleeve.

FREDERICK MULLER.

sleeve, a threaded stud projecting from the jaw, a clamp Screw engagingthe stud, a spindle rotatable within the sleeve, and means for lockingsaid spindle to said sleeve.

7. A holder of the character described, comprising a base, a pair ofrods extending upwardly therefrom, a slide engaging the rods, a clampadapted to lock the slide to the rods, a bar interposed between therods,

five cents each, by addressing the Commissioner of Patents, Washington,D. 0."

Copies of this patent may be obtained for

